英文:
ImageButton call setImageDrawable() but get wrong size
问题
以下是翻译好的部分：
我正在编写一个包含 RecyclerView 的 Android 应用程序，它位于我的 ActivityMain 中。每一行都有一个 ImageButton 和一个文本标签。在 onBindViewHolder() 方法中，我从 URL 下载一张图片，然后在使用 setImageDrawable 方法后，我将图片更换为刚刚下载的图片。
@Overridepublic void onBindViewHolder(@NonNull final MyViewHolder holder, final int position) {holder.textAuthor.setText(posts.get(position).getAuthorName());Thread thread = new Thread(new Runnable() {@Overridepublic void run() {try {// 从我的 Posts 数组列表中获取 URL 图片（其中包含 ImageButton 和 textLabel）URL url = new URL(posts.get(position).getImageView());// 从 URL 获取输入流InputStream inputStream = (InputStream) url.getContent();// 创建一个包含下载图片的可绘制对象Drawable drawable = Drawable.createFromStream(inputStream, null);// 使用新图片替换现有图片holder.imageButton.setImageDrawable(drawable);} catch (Exception e) {e.printStackTrace();}}});thread.start();}
所有的 ImageButton 都可以正确地更换图片，并从它们的 URL 下载图片，但问题是在我滚动下来之前，它们的大小是错误的，直到我使用手指滚动在 RecyclerView 内部滚动一段时间后。这听起来就像我需要刷新我的视图，但我不知道该如何做。
注意：所有的图片大小都不同。
我附上了一些图片来更好地解释我的问题：
其余的代码在这里：MainActivty MyAdapter PostClass <br>
包含 ImageButton 的 XML 文件：我的 RecyclerView 行
希望您能像往常一样帮助我，非常感谢！
附注：我已经使用 Glide 修复了下载图片的问题！
英文:
I was writing an android application which contains a RecyclerView inside my ActivityMain. Each rows has an imageButton and a textLabel. In onBindViewHolder() method, I download an image from an URL and after using setImageDrawable method, I change the image with the one that I just downloaded.
@Overridepublic void onBindViewHolder(@NonNull final MyViewHolder holder, final int position) {holder.textAuthor.setText(posts.get(position).getAuthorName());Thread thread = new Thread(new Runnable() {@Overridepublic void run() {try {// Get URL Image from my ArrayList Posts(which contains imageButton and textLabel)URL url = new URL(posts.get(position).getImageView());// Get inputStream from URLInputStream inputStream = (InputStream) url.getContent();// Create a drawable which contains my downloaded imageDrawable drawable = Drawable.createFromStream(inputStream, null);// Change the image with the new oneholder.imageButton.setImageDrawable(drawable);} catch (Exception e) {e.printStackTrace();}}});thread.start();}
All my ImageButton change image correctly downloading from their URL, but the problem is that they have wrong size until I scroll down and after a while I scroll up inside of my RecyclerView using my finger. It sounds like if I have to refresh my View but I don't know how to do this.
Note: all images have different size
I let you some images to explain better my problem:
When I open my application and it starts to download image from URL
When the download is completed the images have wrong size
If I scroll down and after I scroll up I get the images with the correct size
The rest of my codes is here: MainActivty MyAdapter PostClass <br>
XML File which contains ImageButton: my row of RecyclerView
Hope you can help me as always, thank you a lot!
EDIT: I have fixed downloading image using Glide!
答案1
得分: 0
尝试以下代码，这对我有效：
<ImageButtonandroid:id="@+id/imageButton2"android:layout_width="25dp"android:layout_height="25dp"app:srcCompat="@drawable/about" />
为您的图像按钮设置固定的高度和宽度，然后它将起作用。
英文:
Try the following code it worked for me
<ImageButtonandroid:id="@+id/imageButton2"android:layout_width="25dp"android:layout_height="25dp"app:srcCompat="@drawable/about" />
give your image button fixed height and width then it will work
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